Adaptation - GCSE Biology Definition

In GCSE Biology, 'adaptation' refers to the process by which a species becomes better suited to its environment. It involves the development of 'adaptations': structural, behavioural, or physiological changes that enhance an organism's chances of survival and reproduction in its specific habitat. For example, polar bears have thick fur and a layer of fat to insulate against the cold climate. Adaptations arise through evolutionary changes, enabling species to efficiently exploit resources and cope with environmental pressures. Understanding adaptations helps students grasp how life evolves and diversifies in response to different ecological conditions.